We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our team specializes in Solidity 0.8+, Vyper, and Rust, implementing OpenZeppelin standards and gas-optimized patterns from day one.
LABS
Services
Multi-Chain API Gateway for Legacy System Connectivity
A unified API layer that abstracts EVM, Cosmos, and Solana complexity, enabling your existing ERP and CRM systems to securely read from and write to multiple blockchains.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
Deliver a secure, auditable, and maintainable codebase in 2-4 weeks for an MVP.
- Security-First Development: Formal verification, comprehensive unit testing, and pre-audit reviews.
- Protocol Integration: Native support for
ERC-20,ERC-721,ERC-1155, and custom standards. - Full Lifecycle Support: From architecture and development to deployment, verification, and upgrade management.
key-features-cards
ENTERPRISE-GRADE INTEGRATION
Core Capabilities of Our Multi-Chain Gateway
Connect your legacy systems to any blockchain with a unified, secure, and scalable API layer. We deliver production-ready infrastructure, not just endpoints.
01
Unified Multi-Chain API
A single REST/WebSocket endpoint for Ethereum, Polygon, Arbitrum, and 15+ other EVM chains. Eliminate the complexity of managing separate RPC providers and node infrastructure.
15+
Supported Chains
1
Unified Endpoint
02
Legacy System Connectors
Pre-built adapters for SAP, Salesforce, Oracle, and custom ERPs. Securely trigger on-chain transactions and query blockchain state directly from your existing business logic.
OAuth2/SAML
Auth Integration
REST/SOAP
Protocol Support
03
Enterprise Security & Compliance
Private gateway deployment with dedicated nodes, role-based access control (RBAC), and full audit logging. SOC 2 Type II compliant infrastructure with private key management via HashiCorp Vault or AWS KMS.
SOC 2
Compliance
Zero Trust
Security Model
04
High-Availability Infrastructure
Guaranteed 99.9% uptime SLA with automatic failover across global regions. Load-balanced node clusters ensure sub-second response times even during network congestion.
99.9%
Uptime SLA
< 500ms
P95 Latency
05
Real-Time Event Streaming
WebSocket feeds and webhook integrations for instant notifications on transactions, smart contract events, and wallet activity. Keep legacy systems synchronized with on-chain state.
< 1 sec
Event Delivery
DLQ Support
Guaranteed Delivery
06
Developer Experience & Support
Comprehensive API documentation, SDKs for 5+ languages, and a dedicated technical account manager. We handle node upgrades, gas optimization, and protocol changes.
24/7
SRE Support
5+
Language SDKs
benefits
TANGIBLE RESULTS
Business Outcomes: Faster Integration, Lower TCO
Our Multi-Chain API Gateway is engineered to deliver measurable operational and financial advantages, turning blockchain complexity into a competitive edge for your enterprise.
01
Weeks, Not Months to Production
Go live with a secure, enterprise-grade blockchain connection in under 4 weeks. Our pre-built adapters and standardized API layer eliminate the need for months of custom R&D, accelerating your time-to-market.
< 4 weeks
Average Deployment
90%
Reduced Dev Time
02
Unified Infrastructure, Lower Overhead
Replace the cost and complexity of managing separate node clusters for each blockchain with a single, consolidated API endpoint. Dramatically reduce your cloud spend, DevOps headcount, and operational overhead.
60%
Lower Infrastructure Cost
1 API
For All Chains
03
Enterprise-Grade Reliability & Support
Built on a globally distributed, fault-tolerant architecture with 24/7 monitoring. Includes a 99.9% uptime SLA and dedicated technical support, ensuring your core business processes never experience blockchain-related downtime.
99.9%
Uptime SLA
24/7
Enterprise Support
04
Future-Proof Chain Agnosticism
Avoid vendor and chain lock-in. Our gateway architecture seamlessly integrates new protocols (EVM, Solana, Cosmos, etc.) without refactoring your backend. Scale your Web3 strategy with zero technical debt from integrations.
20+
Supported Networks
0 Refactor
To Add New Chains
The Infrastructure Decision Matrix
Build vs. Buy vs. Our Managed Gateway
A technical and financial comparison of approaches for integrating legacy systems with multi-chain Web3 infrastructure.
| Key Factor | Build In-House | Generic Third-Party API | Chainscore Managed Gateway |
|---|---|---|---|
Time to First Transaction | 6-12 months | 2-4 weeks | 2-4 weeks |
Initial Development Cost | $250K - $750K+ | $10K - $50K setup | $0 setup |
Ongoing Engineering & DevOps | 2-3 FTE engineers | 1 FTE for integration | Fully managed by us |
Multi-Chain Support (EVM & Non-EVM) | Custom per chain | Limited to provider's list | Ethereum, Polygon, Arbitrum, Base, Solana, Sui, Aptos |
Security & Audit Burden | High (your responsibility) | Medium (shared risk) | Low (our SLA, audited relays) |
Guaranteed Uptime SLA | Your internal SLA | Typically 99.5% | 99.9% with financial credits |
Legacy System Connectors | Custom development required | Basic REST/Webhook only | Pre-built for SAP, Salesforce, legacy databases |
Real-Time Event Monitoring | Build custom indexers | Basic, chain-dependent | Cross-chain event streaming with webhooks |
Annual Total Cost of Ownership (Year 1) | $500K - $1.2M+ | $75K - $200K | $60K - $180K (predictable) |
Recommended For | Tech giants with unlimited R&D budget | Simple, single-chain POCs | FinTechs & enterprises scaling securely |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Delivery Process: From Discovery to Deployment
A structured, four-phase methodology designed for enterprise integration. We provide clear milestones, weekly syncs, and guaranteed outcomes to ensure your legacy systems connect to Web3 with zero downtime.
01
Phase 1: Discovery & Architecture
We conduct a technical deep-dive to map your existing data models, APIs, and business logic. Deliverables include a detailed integration blueprint, multi-chain strategy (EVM, Solana, Cosmos), and a fixed-scope Statement of Work.
1-2 weeks
Duration
Fixed Scope
Guarantee
02
Phase 2: Gateway Development & Testing
Our engineers build your custom API Gateway with enterprise-grade security, rate limiting, and real-time monitoring. Every component undergoes unit, integration, and load testing in our staging environment.
3-4 weeks
Typical Build
100% Test Coverage
Standard
03
Phase 3: Security Audit & Staging
Your gateway undergoes a mandatory internal security review against OWASP Top 10 and blockchain-specific vulnerabilities. We deploy to your staging environment for UAT and load testing under simulated production traffic.
Certified Auditors
Security
Simulated Load
UAT Process
04
Phase 4: Production Deployment & SLA
Managed deployment to your production infrastructure with zero-downtime cutover. We provide a 99.9% uptime SLA, 24/7 monitoring dashboards, and dedicated support for the first 30 days post-launch.
99.9%
Uptime SLA
24/7 Support
Post-Launch
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your protocol or dApp.
We architect and deploy custom smart contracts that are secure by design and gas-optimized. Our development process includes formal verification, comprehensive unit testing, and peer review to ensure reliability.
- Custom Logic: Build
ERC-20,ERC-721,ERC-1155, DeFi primitives, or bespoke protocols. - Security First: Code follows OpenZeppelin standards and undergoes manual + automated audits.
- Gas Efficiency: Optimized for cost, targeting 20-40% lower transaction fees.
- Full Lifecycle: From specification and development to deployment and upgrade management.
Deploy a battle-tested, audited smart contract suite in as little as 4-6 weeks, reducing your time-to-market and technical risk.
Multi-Chain API Gateway
Frequently Asked Questions
Get clear answers on how our API gateway bridges your legacy systems to any blockchain.
Our process follows a structured 4-phase approach: 1. Discovery & Scoping (1 week): We analyze your legacy APIs and define integration requirements. 2. Architecture & Design (1-2 weeks): We design the gateway schema, security model, and data flows. 3. Development & Integration (2-3 weeks): Our team builds and rigorously tests the gateway against your staging environment. 4. Deployment & Handoff (1 week): We deploy to production, provide documentation, and conduct knowledge transfer. We assign a dedicated technical lead and provide weekly progress reports.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall